4194994394 has 8 divisors (see below), whose sum is σ = 6312596340. Its totient is φ = 2090795616.

The previous prime is 4194994381. The next prime is 4194994411. The reversal of 4194994394 is 4934994914.

It can be written as a sum of positive squares in 2 ways, for example, as 4194246169 + 748225 = 64763^2 + 865^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3350009 + ... + 3351260.

Almost surely, 2^4194994394 is an apocalyptic number.

4194994394 is a deficient number, since it is larger than the sum of its proper divisors (2117601946).

4194994394 is a wasteful number, since it uses less digits than its factorization.

4194994394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6701584.

The product of its digits is 5038848, while the sum is 56.

The square root of 4194994394 is about 64768.7763818339. The cubic root of 4194994394 is about 1612.7874239081.

The spelling of 4194994394 in words is "four billion, one hundred ninety-four million, nine hundred ninety-four thousand, three hundred ninety-four".